12737138726 has 16 divisors (see below), whose sum is σ = 20578595184. Its totient is φ = 5877760224.

The previous prime is 12737138719. The next prime is 12737138759. The reversal of 12737138726 is 62783173721.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 148340 + ... + 217896.

It is an arithmetic number, because the mean of its divisors is an integer number (1286162199).

Almost surely, 2^12737138726 is an apocalyptic number.

12737138726 is a deficient number, since it is larger than the sum of its proper divisors (7841456458).

12737138726 is a wasteful number, since it uses less digits than its factorization.

12737138726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76615.

The product of its digits is 592704, while the sum is 47.

The spelling of 12737138726 in words is "twelve billion, seven hundred thirty-seven million, one hundred thirty-eight thousand, seven hundred twenty-six".